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secondary 4 | A Maths
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kim Yeon Jae
Kim Yeon Jae

secondary 4 chevron_right A Maths chevron_right Singapore

Please help me with this qn thank you

Date Posted: 4 years ago
Views: 194

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
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Here. The rules of logs are to be followed in these steps.
kim Yeon Jae
Kim Yeon Jae
4 years ago
Hi! I got X=a^2 too but the qn asks to determine the value of n so I’m not sure how to continue from there
Eric Nicholas K
Eric Nicholas K
4 years ago
Here we compare the form x = a2 with the given form x = a^n times b^m. We see that n has to be 2 and m has to be 0. The value b, on the other hand, can take numbers which are positive except for 1.
Eric Nicholas K
Eric Nicholas K
4 years ago
Also, one point here.

In this case b does not appear in the expression for x, so the expressions do not appear to be the same. However, this actually means that there is no b in the expression for x, so m has to be 0.
kim Yeon Jae
Kim Yeon Jae
4 years ago
Ooh I understand alr thank you so much!! :)